The Shark Ultimate Pro runs on 1,800 watts, which is the most of any on our lineup, giving you professional-level power on any type of fabric or garment.

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With the anti-calcification feature, you can rest assured that no calcium will build up inside the Ultimate Pro and that your garments will always look nice after ironing.

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The unit has three-way automatic shut-off, so if you leave the iron plugged in on accident or it tips over, it turns itself off after a period of time.

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With the Ultimate Pro's 176 steam holes, you have the power to remove wrinkles through ironing or vertical steaming.

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The Shark Ultimate Pro has three-way automatic shut-off, so if you leave the iron plugged in on accident or it tips over, it turns itself off after a period of time.

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A temperature-ready light signals you that the Ultimate Pro has reached the set temperature and is ready to be used.

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The Shark Ultimate Pro stays cool to the touch during use.

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The Shark Ultimate Pro has an anti-drip system built into it, which helps prevent water from dripping out through the steam vents.

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You can use the included flask to refill the Shark Ultimate Pro's reservoir more easily than holding the iron under a running tap.

The Shark Ultimate Professional Iron has the power to handle difficult ironing and steaming tasks, and its various convenience features let you focus on your projects, not on the iron.

With 1,800 watts, this iron is capable of eliminating wrinkles from any fabric type, whether through ironing or vertical steaming. With its 176 steam holes and adjustable steam gauge, you have full control over how much steam it puts out. If you are steaming vertically, you only have to wait seven seconds between each series of steam bursts.

The stainless steel soleplate measures 9.38 in length, and it's open and tapered at the end, which makes it ideal for ironing around buttons, collars and other difficult areas. It heats up to its lowest setting in 32 seconds, so you aren't left waiting, and it heats up to 150 degrees on its highest setting.

Shark put anti-calcium and anti-scale systems into the iron to reduce and remove mineral deposits. This helps keep your iron in top working condition for a long time, and it also keeps gunk from ever escaping onto your fabric. The soleplate also has an anti-drip system, which prevents residual water and condensation from leaking out through the steam holes.

Measuring 6.8 inches tall, 4.5 inches wide and 12.4 inches long, this is the biggest iron we featured, but it's not the heaviest, weighing 3.18 pounds. Despite its large size, it has an ergonomic design with easy-to-reach buttons and an intuitive interface. A simple button click changes the iron's fabric and temperature setting. A handy temperature-ready light alerts you as soon as the iron is heated. It flashes while it's heating up and stays steady once the iron reaches the desired temperature.

You won't have refill the built-in reservoir often, as it can hold 12.1 ounces at a time. The reservoir door, instead of flipping up, flips to the side, which may be inconvenient for those who are left-handed. Aside from that, it is easy to fill, and the reservoir seals off leaks.

The cord is a bit short, measuring 8.08 feet in length, and we wished it would have been longer for more flexibility in our tests. If you know you will need a longer cord, consider the T-fal FV4495, which has a 12-foot cord. However, the Ultimate Professional has a swivel cord, so even if it is short it stays out of your way and does not snag on any fabric you've already ironed.

If you leave the iron on but unused for four minutes in an upright position, it automatically shuts off. Though this is the shortest time on our lineup and therefore the safest, it may also be annoying if you are working on a project where you are ironing constantly, as you will have to wait for it to regain heat. There is not a way to override this. As we tested it, the body and buttons stayed cool to the touch.

The Ultimate Professional has the best warranty and customer service options of any irons on our lineup. Shark's five-year product warranty gives you long-lasting protection. It also has a FAQs section on its website, along with a product manual. You can contact its customer service department by live chat, email or phone if needed.

The Shark Ultimate Professional has the most wattage of any iron we've featured, and it irons all fabric types easily. Its tapered soleplate lets you iron hard-to-reach places, and its various self-cleaning options extend its life. Though its dimensions are big, its interface is easy to understand and use, and its warranty is the best on our lineup.